405138146

Names of 405138146

• Cardinal: 405138146 can be written as Four hundred five million, one hundred thirty-eight thousand, one hundred forty-six.

Scientific notation

• Scientific notation: 4.05138146 × 10⁸

Factors of 405138146

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 399

Divisors of 405138146

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 7 14 23 46 67 89 134 161 178 211 322 422 469 623 938 1246 1477 1541 2047 2954 3082 4094 4853 5963 9706 10787 11926 14137 14329 18779 21574 28274 28658 33971 37558 41741 67942 83482 98959 131453 137149 197918 262906 274298 325151 431917 650302 863834 960043 1258193 1920086 2276057 2516386 3023419 4552114 6046838 8807351 17614702 28938439 57876878 202569073 405138146
• Sum of all divisors σ(n): 747325440
• Sum of proper divisors (its aliquot sum) s(n): 342187294
• 405138146 is a deficient number, because the sum of its proper divisors (342187294) is less than itself. Its deficiency is 62950852

Bases of 405138146

• Binary: 11000001001011110101011100010₂
• Hexadecimal: 0x1825EAE2
• Base-36: 6P7ILE

Squares and roots of 405138146

• 405138146 squared (405138146²) is 164136917344317316
• 405138146 cubed (405138146³) is 66498126383031961039936136
• The square root of 405138146 is 20128.0437698251
• The cube root of 405138146 is 739.9477355345

Scales and comparisons

• 405,138,146 seconds is equal to 12 years, 45 weeks, 6 days, 2 hours, 22 minutes, 26 seconds.
• To count from 1 to 405,138,146 would take you about nineteen years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 405138146 cubic inches would be around 61.7 feet tall.

Recreational maths with 405138146

• 405138146 backwards is 641831504
• The number of decimal digits it has is: 9
• The sum of 405138146's digits is 32
• More coming soon!